Therefore, Disk 1 is the USB flash drive. In the image above, while Disk 0 is 931GB, Disk 1 is 57GB. With a USB flash device connected (which will be Disk 1 or higher), you should be able to identify it by its comparatively low capacity. Note that the size is displayed for each disk. If you have multiple partitions, these will be sequentially numbered. This is the one that Windows is installed on. But which is your USB drive?ĭisk 0 will be your computer's system drive. The resulting table will list the currently available devices. It's time to see which disks are attached to your computer: list disk At the prompt, enter this: diskpartĪ new command line window will open with a new DISKPART prompt. You should now see CMD, the command-line tool. User Access Control will prompt you to confirm the action. You can open this by hitting Windows key + R, entering cmd, then hitting Enter. Windows has a built-in disk partition management tool called Diskpart. How to Remove USB Write Protection With Diskpartīefore starting, insert your pen drive into your computer's USB port.